PtRu alloy nanoparticles embedded on C2N nanosheets for efficient hydrogen evolution reaction in both acidic and alkaline solutions

Chun Li, Long Zhang, Ying Zhang, Yan Zhou, Jingwen Sun, Xiaoping Ouyang, Xin Wang, Junwu Zhu, Yongsheng Fu

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Designing a highly efficient and low-cost electrocatalyst for hydrogen evolution reaction (HER) is of great importance to produce high-purity hydrogen, yet it still remains a huge challenge. Here, we present a facile synthesis of this electrocatalyst, PtRu alloy nanoparticles supported on C2N nanosheets, using a condensation-reduction approach. The PtRu@C2N exhibits comparable performance than the commercial Pt/C and higher efficiency than monometallic Pt@C2N and Ru@C2N in both acidic and alkaline conditions. The highly enhanced activity and fast kinetics of PtRu@C2N were attributed to the large electrochemical active surface area, unique electronic structure of PtRu nanoparticles on C2N nanosheets. Density functional theory calculations show that the alloy effect and the metal-support interaction in PtRu@C2N catalyst optimizes the adsorption energy of H atom and other intermediates, resulting in the improvement of HER activity.

Original languageEnglish
Article number131085
JournalChemical Engineering Journal
Volume428
DOIs
StatePublished - 15 Jan 2021
Externally publishedYes

Keywords

  • Electrocatalysis
  • Hydrogen evolution reaction
  • PtRu alloy nanoparticles

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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